Wispr Raises $280M, Launches Noise-Busting AI Model

Wispr AI has raised $280 million in a Series B round at a $2 billion valuation, led by Menlo Ventures, bringing total funding to $361 million. The company's Flow platform has been used by nearly all Fortune 500 companies and has generated over 60 billion words. Alongside the funding, Wispr unveiled Canto, a proprietary AI speech model trained on noisy, real-world audio environments. When integrated with Flow, Canto reduces transcription error rates in loud settings from 30% to between 5% and 10%, dramatically expanding practical use cases for voice dictation.